Can I use my existing LLC as a parent or child in my Series LLC?

It depends on where your current LLC was formed. If you were here in Texas, for instance, where Series LLCs are allowed, then you could convert your LLC into part of a Series LLC structure. Now, whether you want to is between you and your lawyer. But as a general rule, you can do this in states that permit the Series LLC. The ability to incorporate an existing LLC into a Series LLC depends strongly on where you live. However, LLCs in general CAN own other LLCs. The best way to get it done will vary from investor to investor. Your reasons for wanting to preserve your current LLC may also influence the best course of action for you. Be sure to tell your lawyer what your motivations are as well as what you want.